<template>
  <div class="header">
    <div class="nav-topbar">
      <div class="container">
        <div class="topbar-menu">
          <a href="javascript:;">无忧农</a>
          <a href="javascript:;">NONG</a>
          <a href="javascript:;">商户入住</a>
          <a href="javascript:;">协议规则</a>
        </div>
        <div class="topbar-user">
          <a href="javascript:;" v-if="!username" @click="login">登录</a>
          <a href="javascript:;" v-if="!username" @click="register">注册</a>
          <a href="javascript:;" v-if="username">{{ username }}</a>
          <a href="javascript:;" v-if="username" @click="logout">退出</a>
          <a href="javascript:;" v-if="username" @click="goToOrderList">我的订单</a>
          <a href="javascript:;" class="my-cart" @click="goToCart"><span class="icon-cart"></span>购物车({{
              cartCount
            }})</a>
        </div>
      </div>
    </div>
    <div class="nav-header">
      <div class="container">
        <div class="header-logo">
          <a href="/index"></a>
        </div>
        <div class="header-menu">
          <div class="item-menu">
            <span>水果</span>
            <div class="children">
              <ul>
                <li class="product" v-for="(item, index) in productFilterList(1009902)" :key="index">
                  <a :href="'/detail/' + item.id" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="item.mainImage" alt="">
                    </div>
                    <div class="pro-name">{{ item.name }}</div>
                    <div class="pro-price">{{ item.price | currency }}</div>
                  </a>
                </li>
              </ul>
            </div>
          </div>
          <div class="item-menu">
            <span>蔬菜</span>
             <div class="children">
               <ul>
                 <li class="product" v-for="(item, index) in productFilterList(1009901)" :key="index">
                   <a :href="'/detail/' + item.id" target="_blank">
                     <div class="pro-img">
                       <img v-lazy="item.mainImage" alt="">
                     </div>
                     <div class="pro-name">{{ item.name }}</div>
                     <div class="pro-price">{{ item.price | currency }}</div>
                   </a>
                 </li>
               </ul>
             </div>
          </div>
          <div class="item-menu">
            <span>禽畜肉蛋</span>
            <div class="children">
              <ul>
                <li class="product" v-for="(item, index) in productFilterList(1009903)" :key="index">
                  <a :href="'/detail/' + item.id" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="item.mainImage" alt="">
                    </div>
                    <div class="pro-name">{{ item.name }}</div>
                    <div class="pro-price">{{ item.price | currency }}</div>
                  </a>
                </li>


<!--                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-1.jpg'" alt="">
                    </div>
                    <div class="pro-name">小米壁画电视 65英寸</div>
                    <div class="pro-price">6999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-2.jpg'" alt="">
                    </div>
                    <div class="pro-name">小米全面屏电视E55A</div>
                    <div class="pro-price">1999元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-3.png'" alt="">
                    </div>
                    <div class="pro-name">小米电视4A 32英寸</div>
                    <div class="pro-price">699元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-4.jpg'" alt="">
                    </div>
                    <div class="pro-name">小米电视4A 55英寸</div>
                    <div class="pro-price">1799元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-5.jpg'" alt="">
                    </div>
                    <div class="pro-name">小米电视4A 65英寸</div>
                    <div class="pro-price">2699元</div>
                  </a>
                </li>
                <li class="product">
                  <a href="" target="_blank">
                    <div class="pro-img">
                      <img v-lazy="'/imgs/nav-img/nav-3-6.png'" alt="">
                    </div>
                    <div class="pro-name">查看更多</div>
                    <div class="pro-price">小米电视</div>
                  </a>
                </li>-->
              </ul>
            </div>
          </div>
        </div>
        <div class="header-search">
          <div class="wrapper">
            <input type="text" name="keyword">
            <a href="javascript:;"></a>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {mapState} from 'vuex'

export default {
  name: 'nav-header',
  data() {
    return {
      phoneList: [],
      productList: [],
    }
  },
  computed: {
    /* username() {
        return this.$store.state.username
    },
    cartCount() {
        return this.$store.state.cartCount
    }, */
    ...mapState(['username', 'cartCount'])
  },
  filters: {
    //过滤商品的价格单位
    currency(val) {
      if (!val) {
        return '0.00'
      } else {
        return '￥' + val.toFixed(2) + '元/斤'
      }
    }
  },
  mounted() {
    this.getProductList()
    let params = this.$route.params
    if (params && params.from == 'login') {
      this.getCartCount()
    }
  },
  methods: {
    //跳转登录
    login() {
      this.$router.push('/login')
    },
    //注册
    register() {
      this.$router.push({path: '/Login?login=0'})
    },
    //退出
    logout() {
      this.request.post('/user/logout').then(() => {
        this.$message.success("退出成功")
        this.$cookie.set('userId', '', {expires: -1})
        this.$store.dispatch('saveUserName', '')
        this.$store.dispatch('saveCartCount', 0)
      })
    },
    //获取商品列表（头部）
/*    getProduct() {
      this.request.get('/products', {
            params: {
              categoryId: '100012',
              pageSize: 6
            }
          }
      ).then((res) => {
        this.phoneList = res.list
      })
    },*/
    getProductList() {
      this.request.get('/products/list').then((res) => {
        this.productList = res
      })
    },
    //过滤商品分类
    productFilterList(categoryId) {
      let product = this.productList.filter(item =>
          item.categoryId === categoryId
      )
      return product.slice(0, 6)
    },
    //获取购物车数量
    getCartCount() {
      this.request.get('/carts/products/sum').then((res = 0) => {
        this.$store.dispatch('saveCartCount', res)
      })
    },
    //跳转购物车
    goToCart() {
      this.$router.push('/cart')
    },
    goToOrderList() {
      this.$router.push('/order/list')
    }
  }
}
</script>

<style lang="scss" scoped>
@import '../assets/scss/base.scss';
@import '../assets/scss/mixin.scss';
@import '../assets/scss/config.scss';

.header {
  .nav-topbar {
    height: 39px;
    line-height: 39px;
    background-color: #333333;
    color: #B0B0B0;

    .container {
      @include flex();

      a {
        display: inline-block;
        color: #B0B0B0;
        margin-right: 17px;

        &:last-child {
          margin-right: 0;
        }
      }

      .my-cart {
        width: 110px;
        background-color: $colorA;
        text-align: center;
        color: #FFFFFF;

        .icon-cart {
          @include bgImg(16px, 12px, '../../public/imgs/icon-cart-checked.png');
          margin-right: 4px;
        }
      }
    }
  }

  .nav-header {
    .container {
      height: 112px;
      position: relative;
      @include flex();

      .header-logo {
        display: inline-block;
        width: 55px;
        //height: 55px;
        //background-color: $colorA;
        a {
          display: inline-block;
          width: 110px;
          height: 75px;

          &:before {
            content: '';
            //@include bgImg(55px, 55px, '../../public/imgs/mi-logo.png', 55px);
            @include bgImg(75px, 75px, '../../public/imgs/mall_logo.png', 75px);

            transition: margin .2s;
          }

          /*                        &:after{
                                      content: '';
                                      @include bgImg(55px, 55px, '../../public/imgs/mall_logo.png', 55px);
                                  }
                                  &:hover:before{
                                      margin-left: -55px;
                                      transition: margin .2s;
                                  }*/
        }
      }

      .header-menu {
        display: inline-block;
        width: 643px;
        padding-left: 209px;

        .item-menu {
          display: inline-block;
          color: #333333;
          font-weight: bold;
          font-size: 16px;
          line-height: 112px;
          margin-right: 20px;

          span {
            cursor: pointer;
          }

          &:hover {
            color: $colorA;

            .children {
              height: 220px;
              opacity: 1;
            }
          }

          .children {
            position: absolute;
            top: 112px;
            left: 0;
            width: 1226px;
            height: 0px;
            opacity: 0;
            overflow: hidden;
            border-top: 1px solid #E5E5E5;
            box-shadow: 0px 7px 6px 0px rgba(0, 0, 0, 0.11);
            z-index: 10;
            transition: all .5s;
            background-color: #FFFFFF;

            .product {
              float: left;
              width: 16.6%;
              height: 220px;
              font-size: 12px;
              line-height: 12px;
              text-align: center;
              position: relative;

              a {
                display: inline-block;
              }

              img {
                height: 111px;
                margin-top: 26px;
              }

              .pro-img {
                height: 137px;
              }

              .pro-name {
                font-weight: bold;
                margin-top: 19px;
                margin-bottom: 8px;
                color: $colorB;
              }

              .pro-price {
                color: $colorA;
              }

              &:before {
                content: '';
                position: absolute;
                top: 28px;
                right: 0;
                border: 1px solid $colorF;
                height: 100px;
                // width: 1px;
              }

              &:last-child:before {
                display: none;
              }
            }
          }
        }
      }

      .header-search {
        width: 319px;

        .wrapper {
          height: 50px;
          border: 1px solid #E0E0E0;
          display: flex;
          align-items: center;

          input {
            border: none;
            box-sizing: border-box;
            border-right: 1px solid #E0E0E0;
            width: 264px;
            height: 50px;
            padding-left: 14px;
          }

          a {
            @include bgImg(18px, 18px, '../../public/imgs/icon-search.png');
            margin-left: 17px;
          }
        }
      }
    }
  }
}
</style>